The Navigator palette in the Workbook pane (on the left-hand side of the Maple interface) illustrates the file and the folder structure of a Workbook.  

Files can be attached from the Navigator. Once attached, if you double-click on:

The Navigator can have a folder structure to help you manage attachments. You can also reorder and move files.

For more information on the Navigator palette features, see the Navigator help page.

You can read data attached to a workbook. For example, you can read the data from a CSV file, or the contents of a Maple language file.

The file path to an attachment is known as a Workbook URI. Right-click on an attachment in the Navigator and select "Copy Path" to copy its URI into the clipboard (or one of several other file operations).

Here in this example, the data from an attached CSV file and the contents of a Maple language file are read into a worksheet attached to the workbook .

The matrix data from the data file can now be used in the worksheet. In this example it is used to generate a plot.

Similarly the code from the factorial.mpl file can be used inside the attached worksheet.

The Variables palette in the Workbook panel lists the assigned names in the current worksheet, together with the type and value.

To see the value of a variable, double-click on the appropriate item.

Items saved in the Variables palette are automatically available for use after restarts and reloads - they don't need to be redefined.

Any item in the Variables palette can be shared between worksheets in workbook. To share a variable, simply right-click on the variable and select Save.

For more information on the Variables palette in the Workbook panel, see this section on Workbook Variables.